I'm building a project I got as PCB+panel, sourcing my own parts. It takes a clock buffered through CD40106 and runs a CD4017. The sequential outputs of the CD4017 create a programmable sequence of voltages that go to an LM358-based output stage. The full schematic can be seen here. I just realized I didn't source the LM2931, which forms the +5V line for the digital ICs. I checked the datasheet and looks like it's just a low-dropout 5V regulator rated at 100mA. Should good old 78L05 fit the bill as a replacement for just powering 4XXX logic? I'm almost sure it should be fine but thought it's better to ask. Here's the relevant part of the schematic:
I have tried contacting the PCB creator with a previous project also from him, but got no reply so I think I'll get everything sorted out quicker by just asking here and making some modifications on my own.
Edit: The LM358 stage is just the usual 100k/100k summing mixer for the CD4017 outputs and then 100k/100k buffer with 15pF in the feedback path and 330R at the output jack.